/*
 * Copyright © 2020 jsonwebtoken.io
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.jsonwebtoken.impl.lang;


/**
 * Function that always returns the same value
 *
 * @param <T> Input type
 * @param <R> Return value type
 */
public final class ConstantFunction<T, R> implements Function<T, R> {

    private final R value;

    public ConstantFunction(R value) {
        this.value = value;
    }

    @Override
    public R apply(T t) {
        return this.value;
    }
}
